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Can machine learning measure how much radio bursts blur as they travel?

Bikash Kharel, Emmanuel Fonseca, Srinjoy Das, Mason Ng, Paul Scholz, Mawson W. Simmons, Lordrick Kahinga, Afrokk Khan

June 2, 2026

Measuring how much interstellar material distorts fast radio bursts (FRBs) is currently slow and error-prone. Researchers built MT-GMDN, a deep learning system that simultaneously analyzes two different views of each burst—its dynamic spectrum and time profile—through parallel neural networks, then outputs a probability distribution for the scattering parameter rather than a single guess. Tested on 3,500 CHIME/FRB events, it achieves 94% accuracy and correctly identifies bursts with no measurable scattering 90% of the time.
Published as Multimodal Transformer Based Generic Mixture Density Network for Scattering Timescale Estimation of Fast Radio Bursts arXiv:2606.03596
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